Ring gasket



FIG. 1 is an isometric view of our design for a ring gasket;

FIG. 2 is a front view of the design for the ring gasket shown in FIG.1, the rear view being identical; and,

FIG. 3 is a left side view of the design for the ring gasket shown inFIG. 1, the right side view and the top and bottom views beingidentical.

We claim the ornamental design for a ring gasket, as shown anddescribed.